package com.naver.java3d;

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.GraphicsConfiguration;

import javax.media.j3d.Alpha;
import javax.media.j3d.Appearance;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.Canvas3D;
import javax.media.j3d.RotationInterpolator;
import javax.media.j3d.Texture;
import javax.media.j3d.TextureAttributes;
import javax.media.j3d.Transform3D;
import javax.media.j3d.TransformGroup;
import javax.vecmath.Point3d;

import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.Box;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.universe.SimpleUniverse;

public class TextureImage extends Applet {

	private java.net.URL texImage = null;

	private SimpleUniverse u = null;

	public BranchGroup createSceneGraph() {
		// Create the root of the branch graph
		BranchGroup objRoot = new BranchGroup();

		// Create the transform group node and initialize it to the
		// identity. Enable the TRANSFORM_WRITE capability so that
		// our behavior code can modify it at runtime. Add it to the
		// root of the subgraph.
		TransformGroup objTrans = new TransformGroup();
		objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		objRoot.addChild(objTrans);

		// Create appearance object for textured cube
		Appearance app = new Appearance();
		Texture tex = new TextureLoader(texImage, this).getTexture();
		app.setTexture(tex);
		
		TextureAttributes texAttr = new TextureAttributes();
		texAttr.setTextureMode(TextureAttributes.MODULATE);
		app.setTextureAttributes(texAttr);

		// Create textured cube and add it to the scene graph.
		Box textureCube = new Box(0.4f, 0.4f, 0.4f, Box.GENERATE_TEXTURE_COORDS, null);
		textureCube.setAppearance(1, app);
		textureCube.setAppearance(2, app);
		objTrans.addChild(textureCube);

		// Create a new Behavior object that will perform the desired
		// operation on the specified transform object and add it into
		// the scene graph.
		Transform3D yAxis = new Transform3D();
		Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0);

		RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float)Math.PI * 2.0f);
		BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
		rotator.setSchedulingBounds(bounds);
		objTrans.addChild(rotator);

		// Have Java 3D perform optimizations on this scene graph.
		objRoot.compile();

		return objRoot;
	}

	public TextureImage() {
	}

	public TextureImage(java.net.URL url) {
		texImage = url;
	}

	public void init() {
		if (texImage == null) {
			// the path to the image for an applet
			try {
				texImage = new java.net.URL(getCodeBase().toString() + "/stone.jpg");
			} catch (java.net.MalformedURLException ex) {
				System.out.println(ex.getMessage());
				System.exit(1);
			}
		}
		setLayout(new BorderLayout());
		GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();

		Canvas3D c = new Canvas3D(config);
		add("Center", c);

		// Create a simple scene and attach it to the virtual universe
		BranchGroup scene = createSceneGraph();
		u = new SimpleUniverse(c);

		// This will move the ViewPlatform back a bit so the
		// objects in the scene can be viewed.
		u.getViewingPlatform().setNominalViewingTransform();

		u.addBranchGraph(scene);
	}

	public void destroy() {
		u.cleanup();
	}

	//
	// The following allows TextureImage to be run as an application
	// as well as an applet
	//
	public static void main(String[] args) {
		java.net.URL url = null;
		if (args.length > 0) {
			try {
				url = new java.net.URL("file:" + args[0]);
			} catch (java.net.MalformedURLException ex) {
				System.out.println(ex.getMessage());
				System.exit(1);
			}
		} else {
			// the path to the image for an application
			try {
				url = new java.net.URL("file:stone.jpg");
			} catch (java.net.MalformedURLException ex) {
				System.out.println(ex.getMessage());
				System.exit(1);
			}
		}
		new MainFrame(new TextureImage(url), 256, 256);
	}

}
